diff mt_calibrate.m @ 3:ffd7efa3e5c0

Added reverse map from information space to triangle; moved info coors to transmat window.

--- a/mt_calibrate.m	Thu Feb 02 03:12:22 2012 +0000
+++ b/mt_calibrate.m	Fri Feb 03 18:08:07 2012 +0000
@@ -12,11 +12,13 @@
 	P  = Sys.refpoints;
 	fprintf('\nCalibrating for triangle vertices at:\n'); disp(P);
 	p0 = P(:,1);
-	Sys.map = info_map_fn(p0,inv(P(:,2:3)-repmat(p0,1,2)));
+	[Sys.map, Sys.revmap] = info_map_fn(p0,P(:,2:3)-repmat(p0,1,2));
 end
 
-function f=info_map_fn(p0,M)
-	f=@(p)clip_tri(M*(p-p0));
+function [f,g]=info_map_fn(p0,M)
+	iM=inv(M);
+	f=@(p)clip_tri(iM*(p-p0));
+	g=@(p)p0+M*p;
 end
 
 function x=clip_tri(x)